· Sophie · Behind the Build · 2 min read
Behind the Build: How We Designed a Math App That Kids Actually Use
Most educational apps are abandoned within a week. We set out to build one that sticks — here's what we learned about motivation, design, and the science of habit.
“Why would a kid open this app tomorrow?”
That single question drove every decision we made.
The Research That Changed Our Direction
We interviewed 30+ parents and observed 50+ kids using existing math apps. Three patterns emerged:
- Gamification wears off — stickers and stars stop mattering after day 3
- Kids sense “practice” apps — if it feels like homework, they avoid it
- Context matters most — kids engage when they see why the math matters
Our Design Principles
1. Math First, Game Second
Instead of wrapping math problems in a game (which feels hollow), we made the math itself interesting.
Concrete examples > abstract problems.
2. Streaks That Mean Something
We don’t count consecutive days. We count problems solved with understanding. If a child redoes a tough problem until they get it, that counts double.
3. Parent Dashboard, Not Parent Control
Parents can see what their child is learning — and more importantly, how they’re thinking about it. The dashboard shows:
- Concepts mastered vs. in progress
- Time spent per topic
- Common mistake patterns
Not time limits, not lockouts. Trust over surveillance.
The Technical Stack
| Layer | Technology | Why |
|---|---|---|
| Frontend | React + TypeScript | Type safety, huge ecosystem |
| Backend | Go + PostgreSQL | Performance, reliability |
| Content | MDX | Flexible, version-controlled lessons |
| Analytics | Custom event pipeline | Privacy-first, no third-party tracking |
What We’d Do Differently
If we started over tomorrow:
- Ship sooner — we spent too long perfecting the onboarding
- Test with real kids earlier — paper prototypes work; you don’t need code
- Fewer features, deeper ones — breadth is tempting; depth is what teaches
Building better learning tools, one iteration at a time. See what we’re working on now
